baber/WOPTO huggingface dataset:
Patent GB-1369792-A (GB)
Title: Electromechanical actuator for control systems especially injection  pump control systems of diesel engine installations
IPC: F16H31/00
Filed: 1972-09-04
Abstract: 1369792 Starting and stopping diesel engines R R ABSALOM 30 May 1972 [28 May 1971 24 June 1971] 18148/71 and 29620/71 Heading F1K [Also in Division F2] An electro-mechanical actuator 9 for operating the control shaft of a diesel engine fuel injection pump comprises a plate 18 rotated clockwise by a solenoid 11 through a pawl 28 and teeth 19. The solenoid is de-energized intermittently so that rotation of the plate 18 about the axis of the shaft 15 occurs from the intial position shown to a second position, Fig. 3 (not shown). A pawl 36 prevents anti-clockwise rotation. In the second position the solenoid is maintained energized and the pawl 36 is held away from the teeth 19 by engagement in a recess 42 of a lever 40. The plate 18 is biased anti-clockwise by a spring 22 which returns the plate to its initial position when the solenoid 11 is de-energized. In the initial position the pawl 36 is released from the lever recess 42 by engagement of a pin 46 on the plate 18 with the lever 40. In the embodiment shown the intermittent de-energization of the solenoid 11 is effected by opening a micro-switch 50 in the solenoid circuit. The operating arm 56 of the switch 50 is held in a switch closed position by a detent 60 until the detent is moved by a projection 62 on the plate 14, connected to the solenoid armature 12, in the retracted position of the armature. In the second position of the plate 18 the surface 65 on the plate engages the arm 56 to retain the switch 50 closed, a resistor 55 then being in circuit with the solenoid to provide the holding current. A solid state switching device may control solenoid energization. The shaft 15 may be connected to the injection pump shaft (70), Fig. 5 (not shown), through a coupling (67) to move the pump shaft, against the bias of a spring (75), to a fuel supply position. A cable 77' may connect the pump shaft to a connector 78 on the plate 18. The plate 18 may have opposed biasing springs which act to provide a substantially constant biasing force as it rotates.
Patent GB-819818-A (GB)
Title: Improvements in or relating to the casting of metals
Inventor: KILPATRICK STANLEY ALEXANDER
IPC: B22D11/14
Filed: 1956-06-19
Abstract: 819,818. Conti n uous-casti ngmachines. KAISER ALUMINUM & CHEMICAL CORPORATION. June 19, 1956, No. 18975/56. Class 83 (1). In continuously casting light metal, the pouring jet is directed outwardly in such direction and at such velocity that the flow of metal is tangential with respect to at least one of the retaining surfaces for the molten-metal body, and the molten metal flows to the outer zone of the molten metal body in substantial sweeping contact with the retaining surfaces therefor, whereby a portion of the heat is abstracted therefrom, and thereafter the partially cooled molten metal flows inwardly toward the central portion of the molten metal body at a reduced velocity, where the partially cooled metal rapidly freezes. The apparatus is in most respects the same as that disclosed in Specification 757,568, which is referred to, but the molten metal is poured through a baffle 14, Figs: 3 and 4, having outlets 33 positioned on the diagonals of the baffle and the mould. Other apertures or nozzles 37, 38 may be positioned intermediate the corners of the baffle, which may also have a double bottom 35, 36, which may be filled with an insulating material, or alternatively a block of insulating material may be secured to the bottom of the baffle. In a modification, the baffle has a relatively small central cup portion and four diagonally projecting conduits for the passage of the metal outwardly. In a further modification, Fig. 5, a baffle for a circulr mould has a series of nozzles 43. The conditions, e.g. size and number of baffle outlets, pouring and withdrawal rates, &c., relating to the casting of aluminium alloy ingots of various sizes are quoted.
Patent GB-1384788-A (GB)
Title: Conductor rail support channel
IPC: H02G5/04
Filed: 1972-04-24
Abstract: 1384788 Current collectors PAUL VAHLE KG 24 April 1972 [23 April 1971] 18987/72 Heading H2E A conductor rail support channel 11 made of insulating material has a substantially U-shaped profile with the outsides of limbs 112 and 113 of the U carrying respective projections 116 and 117 moulded onto the channel and extending along the channel, these projections 116 and 117 being bent over in the direction of the free ends of the limbs 112 and 113, and these free ends are bent outwardly and upwardly as shown at 118 and 119. The channel 11 is made of elastically deformable material and its interior is provided with a recess 114 and 115 on each side to receive a conductor rail (12). The channel may be suspended by holders (21), Figs. 3 and 4 (not shown), having claws (211 and 212) which engage the projections 116 and 117. When such channels are used in series abutting end to end, a casing (31), Fig. 5 (not shown), may cover a junction and co-operate with both the outwardly bent portions 118 and 119 and the projections 116 and 117, the junction preferably also acting as a current feed-in point to the conductor rail (12).
Patent GB-333868-A (GB)
Title: Improvements relating to wire tying machines
IPC: B65B13/28
Filed: 1929-05-22
Abstract: 333,868. Gerrard Wire Tying Machines Co., Ltd., (Gerrard Co., Inc.). May 22, 1929. Divided on 333,648. Wire strainers.-In a bale &c. wiring machine the cutting members 24, 25 are reciprocated through apertures 45, 46 in the upper limbs 16, 18 of the jaws of the wire guides 19, 21 and cut the wire against the upper faces of the lower limbs of the jaws. In order to accommodate wires of different gauge so that the appropriate wire only is cut, the guides are mounted in recesses 61 in the machine frame so as to be adjustable backwards or forwards. The position of the guides is adjusted by screws 62 working in tapped apertures therein, and the final position thereof is set by grub screws 70, 71. The cutting members comprise chisels removably secured in blocks 47, 48 which are reciprocated in guideways 54, 55 upon rotation of eccentrics 56, 57 on the ends of a U- shaped handle 60. Specifications 333,648 and 333,867 are referred to.
Patent GB-347057-A (GB)
Title: Rear hub nut key and brake drum drawer for morris cars
IPC: F16D65/10
Filed: 1930-06-23
Abstract: 347,057. Removing brake drums. MOORE, W., Park View, Padiham, Burnley. June 23, 1930, No. 19049. [Class 61 (iii).] Removing wheels and other articles from shafts; rigid-jaw wrenches; retaining in engagement.-A brake drum B is removed from the axle casing A of a motor vehicle by means of a box spanner F adapted to engage the nut D, the spanner being positioned on the nut after removing the wheel and the portion of the axle belonging thereto. The wheel is then replaced on the studs E and the wheel nuts put on the studs and the wheel turned so that one of the studs delivers a sharp blow on the arm f<2> of the box spanner, thereby loosening nut D. The endwise movement of nut D during further rotation of the nut by the spanner and wheel acts to pull the brake drum B and ball bearing C off the axle casing. The device is used in similar manner to give a sharp blow for final tightening when screwing up nut D. The spanner is apertured at f<1> for observation of the removal of the nut.
Patent GB-745173-A (GB)
Title: Improvements in or relating to apparatus for producing periodic m.m.f. impulses
IPC: H02M1/20
Filed: 1953-07-09
Abstract: 745,173. Converting. SIEMENS-SCHUCK. ERTWERKE AKT.-GES. July 9, 1953 [July 9, 1952; July 29, 1952], No. 19073/53. Class 38 (2). Periodic impulses are produced in winding 34 from an A.C. source 31 by connecting in series with it a winding 7 on a saturable core 6 which also carries premagnetizing winding 8 energized from D .C; source 11 through variable controlling resistor 9 and smoothing choke 10. The current i in winding 34 comprises each period a pulse when the M.M.F. produced by it in core 6 is in the same direction as that produced by premagnetizing winding 8 and the voltage drop occurs mainly across winding 34, core 6 being saturated, and a reversed substantially level portion of value i<SP>1</SP>v when the M.M.F.'s oppose, the core 6 being unsaturated and the voltage drop mainly across winding 7. The pulses in winding 34 periodically magnetize core 32 to move armature 33, Fig. 2, or to provide remagnetization before contact closing where core 32 is in a switch choke 12 in a converting system, Fig. 3. The premagnetizing current may be passed through a winding 25 on core 32 to produce an M.M.F. opposite to that produced by current i<SP>1</SP>v to suppress or modify the reverse magnetic field in core 32. The pulse width is altered by varying resistance 9, voltage u of source 31 and the number of turns on winding 7. To limit the current when the remagnetizing pulse is not fully absorbed before core 32 is saturated, and to avoid ohmic losses resulting from the introduction of limiting resistance, a rectifier 16 is connected in the remagnetization current blocking direction, and across it is connected in series, smoothing choke 15, limiting resistor 18 and D.C. source 17. Current passes through rectifier 16 until the pulse current rises to the value to which it is to be limited. The switch choke may be premagnetized by D.C. through winding 19 and by voltage dependent current in the circuit including rectifier 24 and resistor 23, connected to a tapping-point on choke 12 to give contact opening at no current and voltage. The complete cycle of current and voltage in the remagnetizing circuit of the switch choke in a three-phase converter system is described with reference to Figs. 4-6 (not shown) where the saturable core 6 is assumed to have a substantially rectangular hysteresis loop. It is shown how the length of the current closing step may be varied from zero to its full maximum possible value by altering the value of D.C. premagnetization of core 6, when a rectifier is connected in the remagnetizing circuit in the current carrying direction. To safeguard against complete elimination of the current closing step, part of core 32 of the switch choke is not embraced by winding 34 so that it is unaffected by the remagnetization current.
Patent GB-223329-A (GB)
Title: Improved apparatus for observation of magnetic induction attraction and repulsion applicable to magnetic games of skill and dancing figures
IPC: A63H33/26
Filed: 1923-07-26
Abstract: 223,329. Sayers, W. B. July 26, 1923. Teaching magnetism. - An apparatus for the observation of magnetic effects and which may also be used as an amusement device or for playing a game, consists of a plate of glass or other metallic or non-metallic material upon which objects made of magnetizable material may readily glide, and means for producing a magnetic field in proximity to the plate so as to cause the objects to locate themselves or gyrate upon the plate in accordance with the motion or varying intensity of the magnetic field. The device consists of a frame B on which a compound bar magnet F is mounted in gimbals E, a flat plate A and a spherical plate G of glass being arranged close to the ends of the magnet. Steel pins H, screws I, steel balls, or other magnetic objects when placed on the plate A, or close to the underside of the plate G, group themselves symmetrically about the axis of the magnet and gyrate or slide on the plates when the magnet swings on the gimbals. The magnet is preferably of cobalt chrome steel or it may consist of an electric magnet or a solenoid. The plates A, G may be mirrors, and the magnetic objects may be draped with paper or other light material and made to represent figures. The plates may be made of very thin iron sheet or of copper or silver, t'o modify the effects produced by the magnet. In using the device for playing a game, pins are dropped on to the plate A, the object being to cause the greatest number of pins to arrange themselves on the plate without being in contact with one another.
Patent GB-629406-A (GB)
Title: Improvements in or relating to peroxides of sodium and/or potassium and method of making the same
IPC: C01B15/043
Filed: 1946-06-27
Abstract: Sodium and/or potassium peroxides are produced by reacting a molten potassium compound with sodium to produce a mixture of sodium, potassium and a sodium salt slag, fractionating the mixture to produce pure sodium and potassium, and oxidizing at least one of the pure metals to the corresponding peroxide.  Where one metal is oxidized the other may be recovered in pure form, which in the case of sodium may be recycled to treat a further amount of the potassium compound.  The molten potassium compound, e.g. potassium chloride, may either be reacted with sodium vapour and the resulting mixed vapours fractionated, or the molten potassium compound may be reacted with metallic sodium and the metals distilled from the sodium salt slag to form a sodium-potassium alloy prior to fractionation and oxidation.  In one embodiment molten potassium chloride is passed into a column (containing packing, e.g. Raschig rings) intermediate its length, sodium vapour passed into the column at a point below that of entry of the chloride, and heat supplied to the column to cause reaction between the components and to produce by fractionation pure potassium vapour at the upper end of the column and sodium chloride which is withdrawn from the lower end, the potassium thus recovered is then oxidized to peroxide.  Specification 626,644 is referred to.  The Specification as open to inspection under Sect. 91 comprises also the production of oxides of sodium and potassium. This subject-matter does not appear in the Specification as accepted.
Patent GB-1324043-A (GB)
Title: Preparation of cyclic carboxylic acid sulphonates
IPC: C07C309/60
Filed: 1971-06-07
Abstract: 1324043 Aromatic carboxylic acid sulphonates VYZKUMNY USTAV ORGANICKYCH SYNTEZ 7 June 1971 [5 June 1970] 19219/71 Heading C2C A cyclic carboxylic acid sulphonate is obtained by forming a reaction mixture which comprises (a) a sulphonic acid of the formula wherein Ar is an aromatic or heteroaromatic residue; R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are H or straight or branched chain (C 1  to C 4 ) alkyl groups, or R<SP>1</SP> and R<SP>2</SP> together form a fused non-aromatic ring, Q is a halogen atom, alkoxy, NO 2 , CN, CH 3 CONH-, COOR wherein R is H or C 1  to C 4  alkyl, -CONRR or -COR group, y is 0 or an integer from 1 to 3, x is an integer from 1 to 4, and wherein at least one of R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> is a straight or branched chain C 1  to C 4  alkyl group; (b) a solvent having a dielectric constant greater than 2 at the temperature of the reaction mixture; and (c) a salt of an acid, said salt being derived from an acid having a pK value greater than the pK value of the sulphonic acid of the above general formula; and treating at atmospheric pressure the reaction mixture thus formed with a gas containing free O 2  or with pure O 2  in the presence of a catalyst comprising cobalt acetate, manganese acetate and ammonium bromide. Specified solvents are acetic acid, acetic anhydride, formamide, DMF, tetramethylurea, acetonitrile and nitromethane. Examples are given for the preparation of various mono- and di-carboxy benzene sulphonic acid salts and of 2-carboxynaphthalene- 6-sulphonic acid monosodium salt.
Patent GB-596507-A (GB)
Title: A new or improved animal trap
IPC: A01M23/30
Filed: 1945-07-27
Abstract: 596,507. Vermin traps. LUND, W. H. July 27,1945, No. 19300. [Class 5 (i)] In a throw-over breakback trap the base of the trap is formed of a rectangular and a circular portion. The rectangular wire frame b has extension loops l which cover the area of the circular portion in the released position. The Provisional Specification also refers to the provision of upstanding projections on the base to force the animal to approach the bait in the path of the break-back frame.
Patent GB-863953-A (GB)
Title: Ball-point pen
IPC: B43K24/08
Filed: 1959-06-05
Abstract: 863,953. Reservoir pens. FABER-CASTELL, R. G. V., [trading as FABER-CASTELL, A. W. [Firm of]]. June 5, 1959 [June 11, 1958], No. 19360/59. Class 146(3). A retractable ball-point peri comprises a push-button for projecting the writing unit, the push-button including a locking member movable in relation to the remainder of the push-button and having an inclined cam surface engaged by the rear end of the writing- unit which is spring-biased rearwards, so that when the push-button is depressed a projection on the locking member is urged laterally to engage an abutment at the inner wall of the casing and hold the unit in its projected position. As shown in Fig. 3, the rear end of the barrel 1 is closed by a cap 6 having a central bore in which a hollow, cylindrical push-button 4 is slidable. The push-button has an annular flange 4<SP>111</SP> at its inner end which abuts against the inner end of the cap 6 when the writing unit 2 is in retracted position. The push-button is slotted at 4<SP>1</SP> and 4<SP>11</SP> and carries an S-shaped locking member 5 in its interior. The ends 5<SP>1</SP> and 5<SP>11</SP> of the member 5 5 project through the slots 4<SP>1</SP> and 4<SP>11</SP> respectively. The rear end of the writing unit. 2 is urged by a spring 3 against a cam surface 5<SP>111</SP> on the member 5 whereby the member 5 is biased towards rotation in a clockwise directions When the writing unit is in the retracted position the end 5" of the member 5 engages the face of the central bore of the cap 6, but when the push-button is depressed to project the writing unit the end 5<SP>11</SP> is carried out of the bore and engages beneath the inner end of the cap 6, as shown, to lock the writing unit in the projected position. The end 5<SP>11</SP> is disengaged from the end of the cap 6 by inward pressure on the end 5<SP>1</SP> so that the writing unit can then be retracted by the spring 3 As shown in Fig. 6, the push button is formed in two parts 9, 10 pivoted together in the manner of a pair of pliers. A cap 8 which closes the rear end of the barrel is formed with two internal annular shoulders 8<SP>1</SP>, 8<SP>11</SP>. Each push-button, part 9, 10 has at its inner end a projection, 9<SP>11</SP>, 10<SP>11</SP> and a cam surface 9<SP>1</SP>, 10<SP>1</SP>, which cam surfaces are engaged by the rear end of the writing unit. An annular flange 9<SP>111</SP> is secured to the part 9 and embraces the part 10. In the retracted position the flange 9<SP>111</SP> engages the shoulder 8<SP>11</SP> and the projections 9<SP>11</SP>, 10<SP>11</SP> engage the bore of the cap 8 between the shoulders 8<SP>1</SP>, 8<SP>11</SP>. When the push-button is depressed the projections 9", 10<SP>11</SP> engage under the shoulder 8<SP>1</SP> and hold the writing unit projected. The rear ends of the parts 9, 10 are squeezed together to disengage the projections from the shoulder 8<SP>1</SP>.
Patent GB-404031-A (GB)
Title: Improvements in and relating to extendible tables such as refectory or dining tables
IPC: A47B1/02
Filed: 1932-07-08
Abstract: 404,031. Tables. GREAVES, F. A., and THOMAS, A. J., (trading as GREAVES & THOMAS), Amherst Works, Northwold Road, Clapton, London. July 8, 1932, No. 19401. [Class 52 (iii).] In an extensible table of the kind with a disappearing intermediate leaf, rack gearing is fitted so that both end leaves move simultaneously, and the racks are fitted with camlike devices for raising and lowering the intermediate leaf. Fig. 2 shows a table with two end leaves 1 and an intermediate leaf 3 on X-links 9 ; rack bars attached to the end leaf 1 on the right carry depending brackets 20, Fig. 5, each made with slots 22 and other parts designed to engage with a pin or roller 14 under the leaf 3, by means of which vertical movement is imparted to it when the right-hand leaf 1 moves outwards, carrying with it the parts 20, 23, the pin 14 under the leaf 3 engages the incline 22<1>. The slotted part 23 then moves backwards on the pins 24, 25 on the part 20, and bridges the opening 22 leading to the slot 21 in the part 20. The end leaves 1 being then moved inwards, the parts 20, 23 again move relatively, and the slot 22 opens ; the pin 14 then rises into the slot, lifting the centre leaf.
Patent GB-946893-A (GB)
Title: Improvements in air outlet devices in air conditioning systems of automobiles
IPC: B60H1/24
Filed: 1962-05-21
Abstract: 946,893. Ventilating vehicles. ANDRE CITROEN S.A. May 21, 1962 [May 24, 1961], No. 19401/62. Heading F4V. In an air-conditioning system for automotive vehicles a duct leading to the interior of the vehicle has a honeycomb grid pivotally mounted at its outlet and opening, for example on the instrument panel of the vehicle, deflecting blades constituting the honeycomb grid being so disposed as to direct air currents in a desired direction according to the grid inclination. In the form shown a duct 30 of the air-conditioning system leads to an outlet 31 on the instrument panel of the vehicle. A honeycomb grid 33 is pivotally mounted on horizontal lateral pins 32 in front of the outlet 31, one of these pins 32 being rigid with a hand lever 34 whereby the complete grid may be pivoted. Deflector blades forming the honeycomb of the grid are arranged as a chequer-work with vertical blades 36 angled towards the side of the vehicle and horizontal blades 37 directed upwards when the grid lays flush against the outlet 31. A flexible sheath (not shown) is fitted between the outlet 31 and the grid 33 to provide an air-tight connection between these members. By a movement of the lever 34 an air stream issuing from the grid may be directed as desired at various inclinations to the horizontal within the range indicated by the angle α. Pivoting control levers 38 and 39 actuate flaps 7 and 12 regulating the flow of air towards the aforesaid outlet 31 or a lower aperture 30 directed towards the floor of the vehicle respectively.
Patent GB-459369-A (GB)
Title: Improvements in or relating to high tension electric switches
IPC: H01H1/50
Filed: 1935-07-08
Abstract: 459,369. Oil-break switches. WEST & CO., Ltd., A., and BREEZE, V., Lewes Road, Brighton. July 8, 1935, No. 19437. [Class 38 (v)] In a high-tension oil switch comprising two contact units adapted to be bridged by a contact bar, each contact unit comprises one or more main contacts 4 and sparking contacts 5, the main and sparking contacts being independently biassed by springs 11 and adapted to make point contact with contacts 10 on the contact bar, giving a pressure intensity so high as to ensure the exclusion of any oil film. In the arrangement shown, for a three-phase switch, each of the six terminals 1 is connected to a contact block 2, each of which supports two pivots 3, on one of which are mounted three main contact fingers 4 and three sparking contacts 5. The main and sparking contacts are biassed towards limiting positions by the springs 11, the arrangement being such that the circuit is made and broken at the sparking contacts. Flexible leads 6 ensure a good connection between the contact blocks 2 and the contact fingers, and the electromagnetic forces set up in the leads and fingers are such that they assist the springs 11 and reinforce the contact with the movable contact bars 7, of which three are provided, mounted on a transverse bar 8 adapted to be raised and lowered by rods 9. The movement of the rods is effected by means of the transmission mechanism described in Specification 459,098 which gives a very high mechanical advantage at the moment of contact.